SLIP-0044 Questions

[CruiseMan]

Can someone explain to me next questions regarding slip44

1. What hexa stands for ?
2. How we got 0x8000003c if in javascript converting(60).toString(16) gives "3c"
3. What is the right way to convert 60 to 0x8000003c and in opposite direction in javascript ?

[jhoenicke]

Since private derivation is used, 2^31 should be added for the hex field (see bip32 spec), e.g., ((60+(1 << 31))>>>0).toString(16) (EDIT: added >>> 0 to trick javascript into using unsigned 32-bit numbers).

[CruiseMan]

@jhoenicke @prusnak Thank you for clarification, but how to convert 0x8000003c => 60 ?.

[jhoenicke]

Convert from hex to decimal and subtract (1<<31).

[CruiseMan]

What i'm doing wrong ? parseInt("0x8000003c", 16) - (1<<31) => 4294967356

[jhoenicke]

Javascript weirdness. try parseInt("0x8000003c", 16) - ((1<<31)>>>0)

[CruiseMan]

@jhoenicke Danke